oneironaut,
Thanks, no harm no foul.
I don't think medical marijuana use is immoral. If some people think it works for them, that's fine with me. If some doctors think it's okay to prescribe it to patients, I can understand that. Heck, if someone wants to puff the magic dragon occasionally, that's fine with me also. When I say "unethical" I mean to say "not conforming to the ethical guidelines for doctors." In other words, regardless of whether or not it is immoral (I don't think it's immoral), doctors have a responsibility to uphold a code of ethics that they agree to. Part of the code of ethics is to conform to the laws governing acceptable behavior for doctors.
To clarify, I think if we find out that marijuana is helpful to patients, then we should change the law and ethical codes to reflect that. But what I don't think I should do is illegally and unethically break the law. Physicians shouldn't be outlaws, no matter how right they think they are. Physicians are professionals, and should act in a professional manner.
The same view applies to euthanasia. I personally think euthanasia should be legal, and it is the patient's right to decide if euthanasia is right for that individual. However, in most states, passive euthanasia is illegal, and in all states, active euthanasia is illegal. Because of that, if I ever become a physician, I would not perform euthanasia even if I think it is the compassionate and moral thing to do, because I as a professional with a civic responsibility, one who is trusted by society, do not feel it is appropriate for anyone to take the law into one's own hands.
I support changing laws, not breaking them.
I hope that explains my probably oversimplified first response. That's also why I emphasized that current state laws allowing prescription of marijuana for medical purposes is in violation of federal law: to make the point that it is currently unethical to prescribe marijuana for medicinal purposes.